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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/netsmb/smb_trantcp.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2000-2001 Boris Popov

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#ifndef _NETSMB_SMB_TRANTCP_H_

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#define	_NETSMB_SMB_TRANTCP_H_

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#ifdef _KERNEL

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#ifdef NB_DEBUG

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#define NBDEBUG(format, args...)	 printf("%s(%d): "format,	\

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					    __func__ , __LINE__ ,## args)

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#else

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#define NBDEBUG(format, args...)

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#endif

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enum nbstate {

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	NBST_CLOSED,

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	NBST_RQSENT,

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	NBST_SESSION,

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	NBST_RETARGET,

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	NBST_REFUSED

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};

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/*

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 * socket specific data

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 */

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struct nbpcb {

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	struct smb_vc *	nbp_vc;

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	struct socket *	nbp_tso;	/* transport socket */

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	struct sockaddr_nb *nbp_laddr;	/* local address */

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	struct sockaddr_nb *nbp_paddr;	/* peer address */

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	int		nbp_flags;

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#define	NBF_LOCADDR	0x0001		/* has local addr */

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#define	NBF_CONNECTED	0x0002

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#define	NBF_RECVLOCK	0x0004

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	enum nbstate	nbp_state;

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	struct timespec	nbp_timo;

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	int		nbp_sndbuf;

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	int		nbp_rcvbuf;

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	void *		nbp_selectid;

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/*	LIST_ENTRY(nbpcb) nbp_link;*/

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};

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/*

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 * Nominal space allocated per a NETBIOS socket.

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 */

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#define	NB_SNDQ		(64 * 1024)

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#define	NB_RCVQ		(64 * 1024)

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/*

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 * TCP slowstart presents a problem in conjunction with large

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 * reads.  To ensure a steady stream of ACKs while reading using

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 * large transaction sizes, we call soreceive() with a smaller

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 * buffer size.  See nbssn_recv().

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 */

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#define NB_SORECEIVE_CHUNK	(8 * 1024)

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extern struct smb_tran_desc smb_tran_nbtcp_desc;

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#endif /* _KERNEL */

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#endif /* !_NETSMB_SMB_TRANTCP_H_ */

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